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The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co: Also Facts and General Information Relating to Pneumatic Despatch Tubes. E-book. Formato PDF
B. C. Batcheller
edizioni Forgotten Books collana , 2017
I have been prompted to prepare this book by the frequent inquiries made regarding the details of our sys tem of pneumatic tubes. These inquiries have come from people interested in our company, from others interested in companies that have purchased the right to use our apparatus, from people desirous of becoming...